Hi BarredBuff. I noticed no one else has responded. I don't feed my chickens Purina Flock Raiser with Oyster shell. The oyster shell helps with calcium which they need for stong eggshells. With Oyster Shells in the name of the feed, I would expect Purina has the other ingredients necessary for proper diet for egglaying. Oyster shells are not needed for anything else in raising chickens that I know of. I noticed you have 20,000 bees listed as pets, I am glad to connect with another chicken bee keeper.
Well, I don't know either, but you may want to compare the protein content of the two feeds. I gather protein is important. If you don't get any more expert answers, you might try putting your question in the subject line.
I read it as meaning Purina Flock Raiser, with oyster shell as a seperate free choice? I'm quite sure they will. I have heard of people feeding Flock Raiser when they have multiple birds together (Chickens, Ducks, Guineas etc). I believe that Flock Raiser is higher in protein then normal layer feeds? And then offering free choice oyster shell allows them to keep their calcium levels up. I can't see a reason why they wouldnt be healthy on that diet, just make sure you offer them in seperate feeders.
